Can you clean purple primer off PVC pipe?
Can you clean purple primer off PVC pipe? Things You Will Need Spray the stained area with "Gumout Choke and Carb Cleaner," and rub with a clean rag. Vigerous rubbing and repeated applications will be required to remove the primer completely. Do you let purple primer dry? 2 Answers. No - PVC Primer does not need to 'dry' before use - in fact, it needs to be wet to do it's job and not impede the cement - remember, plumbers in a hurry use this daily and aren't sitting around waiting for the primer to dry before grabbing the cement....